AU616506B2 - Digital modulator - Google Patents
Digital modulator Download PDFInfo
- Publication number
- AU616506B2 AU616506B2 AU33297/89A AU3329789A AU616506B2 AU 616506 B2 AU616506 B2 AU 616506B2 AU 33297/89 A AU33297/89 A AU 33297/89A AU 3329789 A AU3329789 A AU 3329789A AU 616506 B2 AU616506 B2 AU 616506B2
- Authority
- AU
- Australia
- Prior art keywords
- frequency
- value
- controlled
- digital
- digital modulator
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Ceased
Links
- 230000007775 late Effects 0.000 claims 1
- 230000001413 cellular effect Effects 0.000 description 3
- 102100023882 Endoribonuclease ZC3H12A Human genes 0.000 description 2
- 101710112715 Endoribonuclease ZC3H12A Proteins 0.000 description 2
- 108700012361 REG2 Proteins 0.000 description 2
- 101150108637 REG2 gene Proteins 0.000 description 2
- 101100120298 Rattus norvegicus Flot1 gene Proteins 0.000 description 2
- 101100412403 Rattus norvegicus Reg3b gene Proteins 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- QGVYYLZOAMMKAH-UHFFFAOYSA-N pegnivacogin Chemical compound COCCOC(=O)NCCCCC(NC(=O)OCCOC)C(=O)NCCCCCCOP(=O)(O)O QGVYYLZOAMMKAH-UHFFFAOYSA-N 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03C—MODULATION
- H03C3/00—Angle modulation
- H03C3/02—Details
- H03C3/09—Modifications of modulator for regulating the mean frequency
- H03C3/0908—Modifications of modulator for regulating the mean frequency using a phase locked loop
- H03C3/0975—Modifications of modulator for regulating the mean frequency using a phase locked loop applying frequency modulation in the phase locked loop at components other than the divider, the voltage controlled oscillator or the reference clock
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03C—MODULATION
- H03C3/00—Angle modulation
- H03C3/02—Details
- H03C3/09—Modifications of modulator for regulating the mean frequency
- H03C3/0908—Modifications of modulator for regulating the mean frequency using a phase locked loop
- H03C3/0916—Modifications of modulator for regulating the mean frequency using a phase locked loop with frequency divider or counter in the loop
- H03C3/0925—Modifications of modulator for regulating the mean frequency using a phase locked loop with frequency divider or counter in the loop applying frequency modulation at the divider in the feedback loop
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03C—MODULATION
- H03C3/00—Angle modulation
- H03C3/02—Details
- H03C3/09—Modifications of modulator for regulating the mean frequency
- H03C3/0908—Modifications of modulator for regulating the mean frequency using a phase locked loop
- H03C3/0916—Modifications of modulator for regulating the mean frequency using a phase locked loop with frequency divider or counter in the loop
- H03C3/0933—Modifications of modulator for regulating the mean frequency using a phase locked loop with frequency divider or counter in the loop using fractional frequency division in the feedback loop of the phase locked loop
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03C—MODULATION
- H03C3/00—Angle modulation
- H03C3/02—Details
- H03C3/09—Modifications of modulator for regulating the mean frequency
- H03C3/0908—Modifications of modulator for regulating the mean frequency using a phase locked loop
- H03C3/0941—Modifications of modulator for regulating the mean frequency using a phase locked loop applying frequency modulation at more than one point in the loop
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03L—AUTOMATIC CONTROL, STARTING, SYNCHRONISATION OR STABILISATION OF GENERATORS OF ELECTRONIC OSCILLATIONS OR PULSES
- H03L7/00—Automatic control of frequency or phase; Synchronisation
- H03L7/06—Automatic control of frequency or phase; Synchronisation using a reference signal applied to a frequency- or phase-locked loop
- H03L7/16—Indirect frequency synthesis, i.e. generating a desired one of a number of predetermined frequencies using a frequency- or phase-locked loop
- H03L7/18—Indirect frequency synthesis, i.e. generating a desired one of a number of predetermined frequencies using a frequency- or phase-locked loop using a frequency divider or counter in the loop
- H03L7/197—Indirect frequency synthesis, i.e. generating a desired one of a number of predetermined frequencies using a frequency- or phase-locked loop using a frequency divider or counter in the loop a time difference being used for locking the loop, the counter counting between numbers which are variable in time or the frequency divider dividing by a factor variable in time, e.g. for obtaining fractional frequency division
- H03L7/1974—Indirect frequency synthesis, i.e. generating a desired one of a number of predetermined frequencies using a frequency- or phase-locked loop using a frequency divider or counter in the loop a time difference being used for locking the loop, the counter counting between numbers which are variable in time or the frequency divider dividing by a factor variable in time, e.g. for obtaining fractional frequency division for fractional frequency division
- H03L7/1976—Indirect frequency synthesis, i.e. generating a desired one of a number of predetermined frequencies using a frequency- or phase-locked loop using a frequency divider or counter in the loop a time difference being used for locking the loop, the counter counting between numbers which are variable in time or the frequency divider dividing by a factor variable in time, e.g. for obtaining fractional frequency division for fractional frequency division using a phase accumulator for controlling the counter or frequency divider
- H03L7/1978—Indirect frequency synthesis, i.e. generating a desired one of a number of predetermined frequencies using a frequency- or phase-locked loop using a frequency divider or counter in the loop a time difference being used for locking the loop, the counter counting between numbers which are variable in time or the frequency divider dividing by a factor variable in time, e.g. for obtaining fractional frequency division for fractional frequency division using a phase accumulator for controlling the counter or frequency divider using a cycle or pulse removing circuit
Landscapes
- Stabilization Of Oscillater, Synchronisation, Frequency Synthesizers (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| BE8800516 | 1988-05-06 | ||
| BE8800516A BE1001969A6 (nl) | 1988-05-06 | 1988-05-06 | Numerieke modulator. |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| AU3329789A AU3329789A (en) | 1989-11-09 |
| AU616506B2 true AU616506B2 (en) | 1991-10-31 |
Family
ID=3883400
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| AU33297/89A Ceased AU616506B2 (en) | 1988-05-06 | 1989-04-24 | Digital modulator |
Country Status (3)
| Country | Link |
|---|---|
| AU (1) | AU616506B2 (fi) |
| BE (1) | BE1001969A6 (fi) |
| FI (1) | FI892082A (fi) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AU639624B2 (en) * | 1990-12-20 | 1993-07-29 | Motorola, Inc. | Increased frequency resolution in a synthesizer |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1560233A (en) * | 1977-02-02 | 1980-01-30 | Marconi Co Ltd | Frequency synthesisers |
| US4492936A (en) * | 1981-08-17 | 1985-01-08 | Thomson-Csf | Fractional-division frequency synthesizer for digital angle-modulation |
| AU579249B2 (en) * | 1985-02-06 | 1988-11-17 | Plessey Overseas Limited | Frequency synthesiser with phase modulation ripple compensator |
-
1988
- 1988-05-06 BE BE8800516A patent/BE1001969A6/nl not_active IP Right Cessation
-
1989
- 1989-04-24 AU AU33297/89A patent/AU616506B2/en not_active Ceased
- 1989-05-02 FI FI892082A patent/FI892082A/fi not_active Application Discontinuation
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1560233A (en) * | 1977-02-02 | 1980-01-30 | Marconi Co Ltd | Frequency synthesisers |
| US4492936A (en) * | 1981-08-17 | 1985-01-08 | Thomson-Csf | Fractional-division frequency synthesizer for digital angle-modulation |
| AU579249B2 (en) * | 1985-02-06 | 1988-11-17 | Plessey Overseas Limited | Frequency synthesiser with phase modulation ripple compensator |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AU639624B2 (en) * | 1990-12-20 | 1993-07-29 | Motorola, Inc. | Increased frequency resolution in a synthesizer |
Also Published As
| Publication number | Publication date |
|---|---|
| AU3329789A (en) | 1989-11-09 |
| FI892082A0 (fi) | 1989-05-02 |
| BE1001969A6 (nl) | 1990-04-24 |
| FI892082A (fi) | 1989-11-07 |
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